Unit 3 Lesson 1 Lines and Angles

Unit 3 Lesson 1: Lines and Angles

Unit 3 Lesson 1: Lines and Angles

Lesson Overview

Lines and Angles

Key Terms

Key Terms Banner
  • Parallel lines
  • Skew lines
  • Parallel planes
  • Transversal
  • Alternate interior angles
  • Same-side interior angles
  • Corresponding angles
  • Alternate exterior angles

What You Will Learn

What Will You Learn Banner
  •  understanding of relationships of nonintersecting lines, planes, and angles formed by two lines and a transversal

Overview

Graph

In this lesson, you will explore relationships of nonintersecting lines, planes, and angles formed by two lines and a transversal.

Essential Understanding

Not all lines and not all planes intersect.

This course is based on a textbook that is viewable by clicking on the textbook icon. Keep the textbook open while you go through the lesson so that you may refer to it throughout the lesson.

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Prepare for Application

Instructions

Prepare for Application

You have now studied the Properties of Parallel Lines. It is now time to demonstrate your learning.

Try the activities below on your own. You should be able to answer these before beginning the practice.

 

Do these activities in your journal. 

 

Activity 1

Activity 1

Refer to Problem 1 on page 91 in your online textbook for questions 1-4

  1. Which segments are parallel to AD¯?
  2. Explain why FE¯ and CD¯ are not skew.
  3. What is another pair of parallel planes?
  4. What are two segments parallel to plane DCGH?
Activity 2
Activity 2

Refer to Problem 2 on page 92 in your online textbook for question 1

  1. What are three pairs of corresponding angles?

 

Activity 3
Activity 3

Refer to Problem 3 of page 93 for question 1

  1. Are angles 1 and 3 alternate interior angles, same-side interior angles, corresponding angles, or alternate exterior angles?